Boots – shoes – and leggings
Patent
1978-02-13
1979-12-18
Atkinson, Charles E.
Boots, shoes, and leggings
246 3, 246182R, 364426, G06F 1548
Patent
active
041797396
ABSTRACT:
A method for regulating vehicular traffic over a network of itineraries travelled by various vehicles such as railroad trains, or other public modes of transportation. On board, computer assisted vehicle control processes are advantageously combined with traditional time-table scheduling and modern centralized traffic control concepts. Simplified audio radio communications alleviate the need for intensive track equipment. Monitoring and signaling devices are limited to those dictated by safety rules and regulations. In order to limit to a minimum the exchange of data between each vehicle and the traffic control, a set of predetermined timetables are stored on board each vehicle. Traffic instructions are reduced to two elements, the identification of the assigned timetable and a time lag constant to be uniformly added to the time entries of the assigned time-table. The method relies on precise dead-reckoning equipment on board each vehicle which permits its operation in precise conformance with the assigned time-table. The dead-reckoning equipment which allows a continuous display of the exact location of the vehicle along its prescribed itinerary uses a combination of various conventional and novel techniques for the computation of the distance travelled. The most important of these techniques comprises the recognition along the itinerary of various planned and unplanned events which have been detected during previous experimental runs and recorded in coordination with their locations. Various cross-check and probabilistic choices are used in order to achieve a very high degree of accuracy and reliability of measurement. The method also contemplates the automatic control of the vehicle speed in function of prerecorded acceleration data, and of feedback information proportional to the time error computed in function of the assigned time-table and the dead-reckoning system display.
REFERENCES:
patent: 3953714 (1976-04-01), Gabillard
patent: 3971018 (1976-07-01), Isbister et al.
patent: 3976272 (1976-08-01), Murray et al.
patent: 4023753 (1977-05-01), Dobler
patent: 4066877 (1978-01-01), Virnot et al.
patent: 4084241 (1978-04-01), Tsumura
Atkinson Charles E.
Charmasson Henri J. A.
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